The brand is made in Canada by MARITIME GEOTHERMAL LTD. and is available through dealers in North America, Ireland, and Romania.

The ATW SERIES heat pumps are for heating/cooling as well as domestic hot water production. They feature intelligent defrosting but the units are different in the fact that the compressor is located inside the home while only the coil is outside.

The result is more noise from the indoor unit but they offer an optional two stage compressor which would minimize this effect and they are backed by a pretty good guarantee.

Nordic ATW Series

NORDLINE-- nosreti-cerpadla.cz ---<1*

This brand offers basic heat pumps for heating and DHW production. They are available in both split and monoblock models and are backed with a decent guarantee but their website is not much help.

OCHSNER------int.ochsner.com-------<1*

These units are available throughout Europe and offer a wide range of models to choose from. The ELW models feature state of the art inverter compressors and advanced electronic controls for added efficiency. The manufacturer's website is not much help and does not have a stated warranty policy.

OLIMPIA SPLENDID--olimpiasplendid.com--<1*

This brand is made in Italy and features units with inverter compressors for quiet efficient operation. The SHERPA AQUADUE models have programmable controls and are for cooling as well as heating & DHW production. They have inverter drive compressors and weather compensating controls for added energy savings. Their website is not much help and does not have a stated guarantee for their products.

PANASONIC------panasonic.eu-------<1*

The AQUAREA heat pumps are for heating/cooling and have inverter compressors. The brand is available throughout Europe but only through their factory authorized dealer network. The brand features units in split as well as monoblock models that can be controlled from your smartphone. Their website is not much help and the guarantee is not very good when compared to other brands.

Other Air Source Heat Pump Brand Ratings

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